Canine Good Citizen titling is an excellent start to any well mannered companion. It is a great first step in Therapy and Service Dog training and in some cases can make renting or homeowners insurance concerns easier for certain breeds. Many homeowners associations and even pet friendly apartments have begun asking for proof that your darling Fido isn't going to cause a problem with neighbors or destroying the house. Some insurance companies have a list of "Dangerous Breeds" including Shepherds, Rottweilers, Dobermans and Bully breeds that may require you to carry additional liability insurance unless you can prove them to be Good Citizens.